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...

Top-fuel

...

dragsters

...

like

...

the

...

one

...

shown

...

above

...

accelerate

...

from

...

rest

...

at

...

a

...

tremendous

...

rate.

...

They

...

race

...

on

...

a

...

straight

...

1/4

...

mile

...

long

...

track.

...

From

...

a

...

standing

...

start,

...

they

...

complete

...

the

...

quarter

...

mile

...

in

...

about

...

4.5

...

seconds

...

and

...

reach

...

a

...

speed

...

of

...

about

...

330

...

mph

...

by

...

the

...

finish

...

line.

...

Part

...

A

...

Show

...

that

...

the

...

statistics

...

given

...

in

...

the

...

problem

...

introduction

...

are

...

inconsistent

...

at

...

the

...

10%

...

level

...

with

...

the

...

assumption

...

that

...

the

...

dragster

...

produces

...

constant

...

acceleration

...

as

...

it

...

moves

...

down

...

the

...

track.

...

System:

...

Dragster

...

as

...

point

...

particle

...

.

...

Interactions:

...

External

...

influence

...

from

...

the

...

ground

...

(friction)

...

assumed

...

to

...

produce

...

constant

...

acceleration.

...

Model:

...

One-Dimensional

...

Motion

...

with

...

Constant

...

Acceleration

...

.

...

Approach:

...

We

...

are

...

asked

...

to

...

prove

...

that

...

the

...

model

...

we

...

are

...

examining

...

does

...

not

...

fit

...

the

...

data.

...

To

...

do

...

so,

...

we

...

look

...

for

...

a

...

contradiction.

...

In

...

this

...

case,

...

we

...

have

...

several

...

ways

...

to

...

find

...

the

...

acceleration,

...

since

...

we

...

have

...

a

...

large

...

number

...

of

...

givens.

...

Choosing

...

our

...

coordinates

...

such

...

that

...

the

...

race

...

begins

...

at

...

x

...

i

...

=

...

0

...

and

...

proceeds

...

in

...

the

...

positive

...

x

...

direction,

...

we

...

have:

{:
Panel
titleGivens
=Givens}
Wiki Markup
{latex}\begin{large}\[ t_{i} = 0\]\[t_{f}=\mbox{4.5 s}\]\[ x_{i} = 0\]\[x_{f} = \mbox{402 m} \]\[v_{i}= 0\]\[v_{f} = \mbox{148 m/s}\]\end{large}{latex}
{panel}